Irmologion kUcs by Vladislav V. Dorosh is a free ecclesiastical Cyrillic display font with the look of old Slavonic liturgical lettering. The letters feel drawn rather than engineered, with tall, tapering strokes, rounded bowls, and small marks above and within the forms that echo manuscript notation and devotional book ornament.
It suits church festival posters, museum graphics, book covers, title cards, and historical branding where a free font needs that specifically sacred, old-script atmosphere rather than a generic medieval cue. Use it in short headings, initials, or monogram-like settings, because the unusual proportions and hovering marks give even a few letters the presence of an inscription.